The light bulbs are up now around the city, and you can participate by downloading the Dubai Cares app. Once you get the app, you'll be able to read the 15 different challenges, unlocking each with the help of three clues.

Once you figure out the location of the bulb, you can head to the location and scan the QR code on the bulb.

"The first participant to solve all the 15 challenges and complete the 'hunt' will have the chance to win an opportunity to volunteer abroad with Dubai Cares (Volunteer Globally), one annual day pass for Dubai Parks & Resorts and a 2 night-stay for two at the Versace Hotel.

"The second participant to complete the 'hunt' will have the chance to win an opportunity for 5 volunteers to participate in an edition of Volunteer Emirates 2018, one annual day pass for Dubai Parks & Resorts and a Dubai Mall voucher worth AED3,000.

"The third participant to complete the 'hunt' will have the chance to win an opportunity for 5 volunteers to participate in an edition of Volunteer Emirates 2018, one annual day pass for Dubai Parks & Resorts and a Dubai Mall voucher worth AED2,000. The top three winners will also be awarded a Sensasia spa voucher."